Better fix for #4

app/helpers/gitlab_markdown_helper.rb

@@ -50,7 +50,7 @@ module GitlabMarkdownHelper
     end
     html_doc = Nokogiri::HTML(@markdown.render(text))
     html_doc.css(':not(li)').each { |dom| dom[:dir] = :auto }
-    html_doc.to_html.gsub(%r{\{anchor=([\w-]+)\}}m) { |match| "<a name=\'#{$1}\'></a>" }.html_safe
+    html_doc.to_html.html_safe
   end
 
   # Return the first line of +text+, up to +max_chars+, after parsing the line

lib/redcarpet/render/gitlab_html.rb

@@ -49,7 +49,7 @@ class Redcarpet::Render::GitlabHTML < Redcarpet::Render::HTML
       "<h#{level}>#{text}</h#{level}>"
     else
       id = ActionController::Base.helpers.strip_tags(h.gfm(text)).downcase() \
-          .gsub(/[^a-z0-9_-]/, '-').gsub(/-+/, '-').gsub(/^-/, '').gsub(/-$/, '')
+          .gsub(/[^\p{Word}-]/, '-').gsub(/-+/, '-').gsub(/^-/, '').gsub(/-$/, '')
       "<h#{level} id=\"#{id}\">#{text}<a href=\"\##{id}\"></a></h#{level}>"
     end
   end